None. Auschwitz was run by the SS, a paramilitary organisation independent of the army.
No, it was a concentration camp/extermination camp but it did have many POWs
About 190,000 people died in Auschwitz I.
About 965,000 Jews were murdered at Auschwitz.
There was one large extermination camp in Auschwitz II (Birkenau).
It had 3 sections. Auschwitz-I, which served as a working camp. Auschwitz II-Birkenau, the death camp. Auschwitz-III, it was used to provide slave labor to the nearby industry.
about 900,000
90
Approximately 1.2 million
Hitler owned many concentration camps. However, his most famous complex would have been Auschwitz. It was the largest of the German concentration camps, consisting of Auschwitz I (the Stammlager or base camp); Auschwitz II-Birkenau (the Vernichtungslager or extermination camp); Auschwitz III-Monowitz, also known as Buna-Monowitz (a labor camp); and 45 satellite camps.
90% or more of the people murdered in Auschwitz were Jewish.
Auschwitz was a cluster of camps. Some were slave labor camps with slaves from many different backgrounds worked, and where many were worked to death. Auschwitz II Birkenau was a death camp, devoted almost entirely to the slaughter of Jews.
It is estimated that 1.1 million people, most of them Jewish, died in Auschwitz.